Home / 2,956.50-4,080.15-1,630.20

Finding the Fourth Proportional to 2,956.50, 4,080.15 and 1,630.20

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Solution

The fourth proportional to 2,956.50, 4,080.15 and 1,630.20 is: 2,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.50 : 4,080.15 = 1,630.20 : x
  2. Step 2: Convert to fraction form
    2,956.50/4,080.15 = 1,630.20/x
  3. Step 3: Cross multiply
    2,956.50x = 4,080.15 × 1,630.20
  4. Step 4: Simplify right side
    2,956.50x = 6,651,463.59
  5. Step 5: Solve for x
    x = 6,651,463.59/2,956.50
  6. Step 6: Final answer
    x = 2,249.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.